EP2215169B1 - Floor stripper for chemically-resistant crosslinked floor finishes - Google Patents

Floor stripper for chemically-resistant crosslinked floor finishes Download PDF

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Publication number
EP2215169B1
EP2215169B1 EP07845133.3A EP07845133A EP2215169B1 EP 2215169 B1 EP2215169 B1 EP 2215169B1 EP 07845133 A EP07845133 A EP 07845133A EP 2215169 B1 EP2215169 B1 EP 2215169B1
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composition
composition according
floor
phenyl
substituted alkyl
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German (de)
English (en)
French (fr)
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EP2215169A1 (en
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Nicola Kriens
Christian Liko
Matthias Menzel
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Ecolab Inc
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Ecolab Inc
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D9/00—Chemical paint or ink removers
    • C09D9/04—Chemical paint or ink removers with surface-active agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D9/00—Chemical paint or ink removers
    • C09D9/005—Chemical paint or ink removers containing organic solvents

Definitions

  • This invention relates to floor stripping and to the non-destructive removal of floor finishes.
  • acrylate floor finish polymers often employ metal ion crosslinking and are removed using alkaline strippers.
  • the finish requires increased chemical resistance (e.g., hospitals and other locations where rubbing alcohol and other finish-discoloring solvents may be spilled)
  • less readily disruptable cross-linking agents such as aziridines may be employed. This however can make it very difficult to remove the old finish when refinishing is desired.
  • Finishes having especially high chemical resistance may have to be removed using mechanical means such as sanding. This can damage the underlying flooring substrate.
  • Some underlying flooring substrates are also susceptible to damage from the chemicals employed in aggressive floor strippers. For example, linoleum may turn brown under high pH conditions.
  • references relating to floor strippers include U.S. Patent Nos. 5,342,551 (Ruckle ), 5,419,848 (Van Eenam '848 ), 5,637,559 (Koreltz et al. ), 5,804,541 (Jans ), 5,849,682 (VanEenam '682 ), 5,977,042 (Hernandez et al. ) and 6,544,942 B1 (Smith et al. ), 6,583,101 B1 (Wiseth et al. ), U.S. Patent Application Publication Nos. US 2002/0028621 A1 (Levitt et al.
  • the present invention provides, in one aspect, a floor finish stripper composition
  • a floor finish stripper composition comprising:
  • the invention provides in another aspect a method for stripping or deep scrubbing a hardened floor finish on a floor comprising:
  • compositions and methods have particular utility for stripping or deep scrubbing chemically-resistant crosslinked floor finishes.
  • hardenable floor finish refers to an applied liquid coating that through a chemical or physical process (including solvent evaporation or other drying processes, photochemical reactions, electrochemical reactions, radical processes, thermal processes, ionic processes, moisture cure processes or multiple-component (e.g., two- or three-component) crosslinking processes) can become dried, crosslinked or otherwise cured in situ to form a tack-free film on a floor.
  • a chemical or physical process including solvent evaporation or other drying processes, photochemical reactions, electrochemical reactions, radical processes, thermal processes, ionic processes, moisture cure processes or multiple-component (e.g., two- or three-component) crosslinking processes) can become dried, crosslinked or otherwise cured in situ to form a tack-free film on a floor.
  • hardened floor finish refers to such a dried, crosslinked or otherwise cured finish.
  • chemically-resistant crosslinked floor finish refers to a hardened floor finish which has crosslinked during hardening to provide a finish that does not dissolve or discolor when temporarily coated with disinfection detergents containing e.g., isopropyl or ethyl alcohol.
  • stripping when used with respect to a floor finish refers to removing, at such time as it may be desired to do so, substantially all of a hardened floor finish from an underlying installed flooring substrate without removing substantial portions of the flooring substrate.
  • Such stripping preferably employs minimally abrasive measures such as mop or spray application of the disclosed stripper, a brief standing time and rinsing using, e.g., water or a detergent solution.
  • Stripping may if desired be accompanied by more abrasive but flooring-safe measures such as abrading the finish during the standing time using e.g., a commercial rotary floor machine (sometimes also called a "single disc machine” or a “swing machine”) equipped with nonwoven or brush floor scrub pads.
  • Stripping desirably is carried out without requiring flooring-damaging finish removal steps such as sanding.
  • deep scrubbing when used with respect to a floor finish refers to removing, at such time as it may be desired to do so, an uppermost portion of a multilayer hardened floor finish without removing all of the layers in such finish.
  • the term "recoating” when used with respect to a floor finish refers to stripping or deep scrubbing, at such time as it may be desired to do so, a worn or otherwise degraded hardened floor finish atop an underlying installed flooring substrate, and applying and hardening an additional layer or layers of hardenable floor finish to provide a fresh hardened floor finish surface.
  • swelling solvent when used with respect to a floor stripper composition refers to an organic liquid that can swell or otherwise be absorbed by a hardened floor finish on an installed floor.
  • solubility limit refers to a material whose solubility limit by itself in water at room temperature and pressure is less than about 10 wt. % and which in the presence of a sufficient amount of a suitable coupler can form a clear, homogenous water solution at a level above such solubility limit.
  • concentrate when used with respect to a floor stripper composition refers to a composition intended to be diluted with water before use.
  • ready to use when used with respect to a floor stripper composition refers to a composition that may be used without such dilution.
  • substantially nonchlorinated when used with respect to a floor stripper composition refers to a composition that does not contain objectionable quantities of chlorinated solvents (e.g., methylene chloride) whose presence might pose a health or environmental hazard.
  • chlorinated solvents e.g., methylene chloride
  • phenyl-substituted alkyl alcohols may be employed in the disclosed compositions and methods.
  • the phenyl-substituted alkyl alcohol desirably has a flash point greater than about 60° C, low odor and low toxicity, and preferably has at least 0.1 wt. % water solubility.
  • phenyl-substituted alkyl alcohols include benzyl alcohol ( ⁇ 4% water solubility); terpineols (e.g., alpha, beta, gamma, etc.; slight water solubility); ethylene glycol monobenzyl ether (water soluble); alpha-phenylethyl alcohol ( ⁇ 0.1% water solubility), beta-phenylethyl alcohol (4% water solubility), ethylene glycol phenyl ether ( ⁇ 2% water solubility, commercially available as DOWANOLTM EPhTM from Dow Chemical Co.), propylene glycol phenyl ether ( ⁇ 1% water solubility, commercially available as DOWANOL PPhTM from Dow Chemical Co.) and mixtures thereof.
  • benzyl alcohol ⁇ 4% water solubility
  • terpineols e.g., alpha, beta, gamma, etc.; slight water solubility
  • ethylene glycol monobenzyl ether water soluble
  • Benzyl alcohol, ethylene glycol phenyl ether and propylene glycol phenyl ether are preferred phenyl-substituted alkyl alcohols.
  • the phenyl-substituted alkyl alcohol may for example represent at least 1 wt. %, at least 5 wt. %, at least 10 wt. %, at least 15 wt. %, at least 20 wt. % or at least 25 wt. % of the total stripper composition.
  • the phenyl-substituted alkyl alcohol may for example also represent less than 50 wt. %, less than 40 wt. %, less than 30 wt. %, less than 20 wt.
  • the phenyl-substituted alkyl alcohol amount may be less than or more preferably greater than the normal solubility limit in the absence of a coupler.
  • a preferred phenyl-substituted alkyl alcohol amount is greater than 5 wt. % and less than 30 wt. %, and more preferably greater than 10 wt. % and less than 20 wt. % of the total stripper composition.
  • oxygenated swelling solvents may be employed in the disclosed compositions and methods.
  • the oxygenated swelling solvent is different from the chosen phenyl-substituted alkyl alcohol, desirably has a flash point greater than about 60° C, low odor and low toxicity, and preferably has at least 0.1 wt. % water solubility.
  • oxygenated swelling solvents include alcohols, ethers, esters, aliphatic acids or anhydrides, and ketones, including 2-, 3- or 4-acetamidophenol ( ⁇ 1.4% water solubility); acetanilide ( ⁇ 1% water solubility); acetophenone ( ⁇ 1% water solubility); 2-acetyl-1-methylpyrrole; benzyl acetate ( ⁇ 1% water solubility); benzyl benzoate ( ⁇ 1% water solubility); oxygenated essential oils (e.g., benzaldehyde, carvone, cinnamaldehyde, borneol and its esters, citrals, linalool and its esters); dibasic esters such as dimethyl adipate, dimethyl succinate, dimethyl glutarate (often available in a mixture, including products available under the trade designations DBETM, DBE-3, DBE-4, DBE-5, DBE-6, DBE-9, DBE-IB, and DBE-ME from DuP
  • Additional representative oxygenated solvents include amyl acetate, amyl alcohol, butanol, 3-butoxyethyl-2-propanol, butyl acetate, n-butyl propionate, cyclohexanone, diacetone alcohol, diethoxyethanol, diethylene glycol methyl ether, diisobutyl carbinol, diisobutyl ketone, dimethyl heptanol, dipropylene glycol tert-butyl ether, ethanol, ethyl acetate, 2-ethylhexanol, ethyl propionate, ethylene glycol methyl ether acetate, hexanol, isobutanol, isobutyl acetate, isobutyl heptyl ketone, isophorone, isopropanol, isopropyl acetate, methanol, methyl amyl alcohol, methyl n-amyl ketone, 2-
  • Preferred oxygenated swelling solvents include propylene glycol monobutyl ether, dipropylene glycol dimethyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, NMP, NEP and mixtures thereof.
  • Some oxygenated swelling solvents e.g., NMP or NEP
  • low flash point oxygenated swelling solvents such as 1,3-dioxolanehose (flash point about -6° C), ethanol (flash point 12° C), isopropanol (flash point 12° C) and other solvents that will be known by persons having ordinary skill in the art may be included together with major amounts of a higher flash point oxygenated swelling solvent, to provide a composition with more acceptable flammability characteristics than one containing only the low flash point solvent.
  • the oxygenated swelling solvents may for example represent at least 1 wt. %, at least 4 wt. %, at least 10 wt. %, at least 15 wt. % or at least 20 wt. % of the total stripper composition.
  • the oxygenated swelling solvent may for example also represent less than 40 wt. %, less than 30 wt. %, less than 20 wt. %, less than 15 wt. %, less than 10 wt. % or less than 5 wt. % of the total stripper composition.
  • the appropriate amount will typically vary somewhat depending on the chosen oxygenated swelling solvent, other ingredients in the stripper composition, and the characteristics of the floor finish whose stripping or deep scrubbing is desired.
  • the oxygenated swelling solvent amount may be less than or more preferably greater than the normal solubility limit in the absence of a coupler.
  • a preferred oxygenated swelling solvent amount is greater than 1 and less than 10 wt. %, and more preferably greater than 4 and less than 10 wt. % of the total stripper composition.
  • Tap water, deionized water, distilled water or water in any other suitable form may be used in the disclosed compositions and methods.
  • the use of softened water or of water having a low overall hardness level may facilitate application of the disclosed compositions to a hardened floor finish and limit dewetting.
  • Water may represent for example at least 5 wt. %, at least 10 wt. %, at least 20 wt. %, at least 25 wt. %, at least 30 wt. %, at least 40 wt. %, at least 50 wt. % or at least 60 wt. % of the total stripper composition.
  • Water may for example also represent less than 80 wt. %, less than 70 wt. %. less than 60 wt.
  • the appropriate amount will typically vary somewhat depending on the other ingredients in the stripper composition and the characteristics of the floor finish whose stripping or deep scrubbing is desired.
  • the composition may be sold in ready to use form, or if desired may be sold as a water-containing concentrate designed to be diluted with additional water, e.g., where deep scrubbing rather than stripping is desired.
  • a preferred water amount for use in ready to use compositions is about 10 to about 70 wt. %, and more preferably about 20 to about 60 wt. % of the total stripper composition
  • the coupler desirably serves as a hydrotrope for one or more hydrophobic ingredients in the stripper composition, may contain carbon atoms, (e.g., from about 2 to about 11 carbon atoms) or heteroatoms (e.g., nitrogen or sulfur), and may be substituted with various moieties (e.g., hydroxyl, ester, aldehyde or alkyl groups), so long as such carbon atoms, heteroatoms and moieties do not prevent the composition from attaining a single phase and do not cause excessive foaming when employing the chosen application equipment.
  • carbon atoms e.g., from about 2 to about 11 carbon atoms
  • heteroatoms e.g., nitrogen or sulfur
  • Couplers include various aromatic acids, water-soluble alkali metal salts of aromatic acids, water-soluble organic amines, water-soluble salts of such amines, and mixtures thereof.
  • couplers including sodium cumene sulfonate, potassium cumene sulfonate, hydroxyethane sulfonic acid, toluene sulfonic acid, xylene sulfonic acid, methyl naphthalene sulfonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, n-butyl acid phosphate, phenyl acid phosphate, dimethylpyrophosphoric acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, benzoic acid, hydroxybenzoic acids (e.g., 2-hydroxybenzoic acid), dihydroxybenzoic acids (e.g., 3,5-dihydroxybenzoic acid), pyridinecarboxylic acids (e.g., 2-pyridinecarboxylic acid).
  • hydroxybenzoic acids e.g., 2-hydroxybenzoic acid
  • dihydroxybenzoic acids e.g., 3,5-dihydroxybenzoic acid
  • pyridinedicarboxylic acids e.g., 2,6-pyridinedicarboxylic acid
  • sulfosuccinic acid monoethanolamine (MEA), 2-aminomethylpropanol (AMPS)
  • the coupler may have any suitable purity level. Preferably however a coupler of at least 30 % purity is employed. Sufficient coupler should be employed so that the composition has a single phase. Thus the desired coupler amount will vary somewhat depending upon the water solubility of the chosen phenyl-substituted alkyl alcohol and oxygenated swelling solvent.
  • the coupler may represent for example about 0.1 to about 20 wt. %, about 1 to about 10 wt. % or about 3 to about 8 wt. % of the total concentrate weight.
  • the saponification agent comprises the reaction product of a fatty acid or fatty ester with a stoichiometric excess (based on the equivalents of acid groups or ester linkages compared to the equivalents of hydroxide) of an alkali metal hydroxide or ammonium hydroxide.
  • the fatty acid or fatty ester and the saponification agent made therefrom desirably have a low or at least not unpleasant odor.
  • a variety of fatty acids or fatty esters may be employed.
  • the fatty acid or fatty ester may for example be saturated or unsaturated and may be naturally-occurring or artificially produced.
  • the fatty acid or fatty ester may contain for example from about 2 to about 34 aliphatic carbon atoms, with the caveat however that odiferous acids or esters such as butyric acid and caproic acid are contraindicated.
  • Representative saturated fatty acids include acetic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid and mixtures thereof.
  • Representative unsaturated fatty acids include myristoleic acid, palmitoleic acid, oleic acid, linoleic acid, alpha-linolenic acid, arachidonic acid, eicosapentaenoic acid, erucic acid, docosahexaenoic acid and mixtures thereof (e.g., coconut fatty acid).
  • Representative fatty esters include non-odiferous alkyl esters of the fatty acids mentioned above. The fatty acid or fatty ester may for example represent at least 1 wt. %, at least 3 wt. %, at least 5 wt. %, at least 6 wt. %, at least 7 wt. % or at least 9 wt.
  • the fatty acid or fatty ester may for example also represent less than 30 wt. %, less than 20 wt. %, less than 15 wt. % or less than 10 wt. % of the total stripper composition.
  • the appropriate amount will typically vary somewhat depending on the chosen phenyl-substituted alkyl alcohol and other ingredients in the stripper composition.
  • a preferred fatty acid or fatty ester amount is greater than 5 and less than 25 wt. %, and more preferably greater than 6 and less than 20 wt. % of the total stripper composition.
  • hydroxide compounds may be combined with the fatty acid or fatty ester to form the saponification agent.
  • Representative hydroxide compounds include lithium hydroxide, sodium hydroxide, potassium hydroxide and ammonium hydroxide, with sodium hydroxide and ammonium hydroxide being preferred.
  • the amount of hydroxide compound may be determined based on the number of fatty acid or fatty ester acid equivalents employed. Sufficient excess hydroxide compound should be employed so that the stripper composition will have an alkaline pH, e.g., a pH value greater than 7 and preferably less than or equal to 11. Stripper compositions with pH values greater than 10 may stain linoleum.
  • a preferred pH for the stripper composition is from about 8 to about 11, from about 8 to about 10, from about 9 to about 11 or from about 9 to about 10.
  • Sufficient saponification agent is used so that the stripper composition has a reduced oily residue after stripping when compared to an otherwise similar composition that does not contain the saponification agent.
  • the stripper composition leaves at most a slightly oily residue after stripping (as evaluated by wiping a hand or cloth across the stripped surface) and more preferably the stripper composition does not leave an oily residue after stripping.
  • the saponification agent may for example represent at least 2 wt. %, at least 3 wt. %, at least 5 wt. %, at least 8 wt. %, at least 10 wt. % or at least 15 wt. % of the total stripper composition.
  • the saponification agent may for example also represent less than 30 wt.
  • a preferred saponification agent amount is greater than 5 and less than 30 wt. %, and more preferably greater than 10 and less than 20 wt. % of the total stripper composition.
  • the disclosed compositions may also contain one or more surfactants.
  • Representative surfactants will be familiar to those skilled in the art, and include anionic, cationic, amphoteric and nonionic surfactants, and mixtures thereof.
  • Exemplary surfactants include fatty alcohols (e.g., saturated or unsaturated C 4-34 fatty alcohols) and the surfactants described in U.S. Patent No. 6,544,942 B1 .
  • the amount of surfactant may vary depending on factors such as the types and amounts of other ingredients in the disclosed composition, the desired dilution level, and other factors that will be familiar to those skilled in the art. As a general guide, the amount of surfactant may be about 0.1 to about 20 wt. %, about 1 to about 15 wt. %, about 1 to about 10 wt. % or about 1 to about 5 wt. % of the total stripper composition.
  • compositions may also contain one or more thickening agents.
  • a thickening agent can help the composition stay in place after being applied, by reducing the tendency for the stripper composition to flow into undesired areas outside the area to be stripped (e.g., carpeting, flooring not being stripped, or areas under store displays and shelving), and by reducing the tendency for the stripper composition to flow from high spots to low spots within the area to be stripped.
  • a variety of thickening agents can be employed. Preferred thickening agents do not unduly impede light transmission through the stripper composition, and provide a composition that will be transparent when applied to a flooring substrate.
  • thickening agents include polyacrylic acid copolymers including alkali-swellable or alkali soluble emulsions (ASE thickeners) and hydrophobically-modified ASE thickeners (HASE thickeners); urethane copolymers including hydrophobically modified, ethoxylated urethane resins (HEUR thickeners); cellulose ethers such hydroxypropyl cellulose, ethyl cellulose, ethyl hydroxyethyl cellulose, methyl cellulose and other alkyl or hydroxy alkyl cellulose ethers; silica including colloidal silica; clays such as bentonite and montmorillonite; starch; alumina including colloidal alumina; gum arabic; tragacanth; agar; sugar derivatives; high molecular weight polyethylene oxides; guar gum; xanthan gum; polyvinyl pyrrolidone; methyl vinyl ether/maleic anhydride copolymers and other
  • the thickener amount may vary depending on the desired storage, dispensing and post-application viscosities and desired rheological behavior. Exemplary commercially-available thickeners include WOKAMERTM C 3301 polyacrylic acid copolymer from Kahl & Co. and SYNTRANTM 1501 aqueous acrylic copolymer from Interpolymer Corp.
  • a preferred thickener amount is about 1 to about 10 wt. % of the total stripper composition.
  • the disclosed compositions may inorganic particles (e.g., abrasive particles).
  • inorganic particles e.g., abrasive particles.
  • a representative list of inorganic particles is shown in U. S. Patent No. 6,800,353 B1 (Anderson et al. ).
  • Silica or organosilica inorganic particles with average particle diameters of about 0.005 to about 0.1 micrometers are preferred.
  • a preferred inorganic particle amount is about 5 to about 20 wt. % of the total stripper composition.
  • compositions may contain other adjuvants including biocides, chelants, builders, defoamers, fragrances, dyes, indicators, colorants, anticorrosion additives, antirust additives, light stabilizers and antioxidants.
  • adjuvants including biocides, chelants, builders, defoamers, fragrances, dyes, indicators, colorants, anticorrosion additives, antirust additives, light stabilizers and antioxidants.
  • types and amounts of such adjuvants will be familiar to those skilled in the art.
  • Table 1 1 2 3 4 Ingredient Amount, % Amount, % Amount, % Amount, % Deionized water 25-70 20-60 20-50 40-80 Ethanol 1-5 1-5 1-5 1-5 Benzyl alcohol 5-20 1-15 10-30 5-20 fatty acid 1-5 3-15 3-15 1-5 Sodium hydroxide, 50 % 1-5 5-10 5-10 1-5 fatty alcohol 1-5 5-10 10-15 1-5 Propylene glycol monobutyl ether 5-10 8-15 10-20 5-10 Polyacrylic acid copolymer thickener 1-5 3-10 3-10 1-5 Sodium cumene sulfonate, 40% 5-15 10-20 5-15 1-10 Abrasive nanoparticles 5-20
  • compositions may be packaged in any convenient form including bottles, drums, dispensers intended to be carried by a user during stripper/cleaner application and dispensers intended to be replaceably installed in a mixing or dispensing device (e.g., a wall-mounted, freestanding or benchtop dispensing station).
  • a mixing or dispensing device e.g., a wall-mounted, freestanding or benchtop dispensing station.
  • suitable packaging will be familiar to those skilled in the art.
  • flooring substrates may be stripped using the disclosed method.
  • exemplary flooring substrates include resilient flooring substrates such as vinyl composition tiles, vinyl flooring (including PVC flooring), linoleum, rubber sheeting, rubber tile, cork and synthetic sports flooring, and non-resilient flooring substrates such as terrazzo, concrete, stone, marble, slate, ceramic tile, grout, and dry shake flooring.
  • resilient flooring substrates such as vinyl composition tiles, vinyl flooring (including PVC flooring), linoleum, rubber sheeting, rubber tile, cork and synthetic sports flooring, and non-resilient flooring substrates such as terrazzo, concrete, stone, marble, slate, ceramic tile, grout, and dry shake flooring.
  • Such flooring substrates may be installed at a variety of jobsites, including indoor and outdoor sites involving new or existing residential, commercial and government- or agency-owned sites.
  • a variety of hardened floor finishes may be stripped or deep scrubbed using the disclosed method.
  • Representative commercially available floor finishes include PADLOCKTM, GEMSTAR LASERTM, GEMSTAR POLARISTM, RIVETTM, and TAJ MAHALTM acrylic floor finishes, GLOSSTEK 100TM and ORIONTM polyurethane floor finishes and COURTMASTER IITM, ISI STARTM, TUKLAR MEDICALTM, and LODAN STARTM finishes, all from Ecolab Inc.; CORNERSTONETM and TOPLINETM acrylic floor finishes from 3M; BETCO BESTTM floor finish from Betco Corp.; HIGH NOONTM acrylic finish from Butchers; CITATIONTM and CASTLEGUARDTM acrylic finishes from Buckeye International, Inc.; THERMOHOSPITALTM polish from Johannes Kiel KG; COMPLETETM, SIGNATURETM, TECHNIQUETM and VECTRATM acrylic floor finishes and OVER AND UNDERTM floor sealer from S.
  • compositions have particular utility for stripping or cleaning chemically-resistant crosslinked floor finishes such as the above-mentioned TUKLAR MEDICAL finish which is crosslinked using an aziridine, and is not normally removable using conventional strippers.
  • the stripper/cleaner should be diluted with water prior to use, e.g., at an intended use location.
  • Ordinary tap water, softened water or process water may be employed.
  • the concentrate:water dilution ratio usually will be at least 1:1 by volume, for example at least 1:2, at least 1:3, at least 1:4, at least 1:5, at least 1:6, at least 1:8, at least 1:10 or more.
  • a variety of mixing methods may be employed. Mixing in a mop bucket is one such method and may be preferred.
  • the stripper/cleaner may be applied using techniques that will be familiar to those skilled in the art (e.g., using a flat or string mop, squeegee, roller or towel).
  • the applied stripper/cleaner should be allowed to stand for a suitable time (e.g., for at least 10, at least 20 or at least 30 minutes, and if need be up to one hour, up to two hours or longer) while it softens or deep scrubs the floor finish.
  • the floor finish and stripper/cleaner may optionally be abraded using a rotary floor machine equipped with a suitably mild abrasive (e.g., a green or black SCOTCH-BRITETM Floor Maintenance pad from 3M) using overlapping passes and taking care to maintain a wet surface.
  • a suitably mild abrasive e.g., a green or black SCOTCH-BRITETM Floor Maintenance pad from 3M
  • the composition (and, where stripping is intended, the softened finish) may be removed using a variety of techniques that will be familiar to those skilled in the art including vacuuming, mopping, scrubbing, wiping or scraping.
  • the stripped floor or deep scrubbed floor finish may be rinsed using at least one and preferably two or more applications of water, allowed to dry and a layer or layers of floor finish applied thereto and caused or allowed to harden. More than one application of floor finish and extra drying time between coats may be needed to ensure that porous portions of the underlying floor or floor finish are adequately filled.
  • a ready to use stripper formulation was made using the ingredients and amounts shown below in Table 2. The mixture formed a clear, single-phase solution.
  • Table 2 Ingredient Amount, % Deionized water 50.3 Ethanol 3.0 Benzyl alcohol 16.2 C 12 -C 18 fatty acid 1 9.0 Sodium hydroxide, 50 % 3.3 C 10 -C 14 EO(6) fatty alcohol 2 4.8 Propylene glycol monobutyl ether 3 6.0 Polyacrylic acid copolymer thickener 4 2.4 Sodium cumene sulfonate, 40% 5.0 1 EDENORTM K 12-18 coconut fatty acid from Cognis. 2 DEHYDOLTM 980 ethoxylated fatty alcohol from Cognis. 3 DOWANOL PnB from Dow Chemical Co. 4 WOKAMERTM C 3301 from Kahl & Co.
  • the resulting stripper composition was used to strip a vinyl composite tile coated with three coats of aziridine-crosslinked TUKLAR MEDICAL floor finish (from Ecolab Inc.) which had been applied at a 30-50 m 2 /L (1,200-2,000 ft 2 /gallon) coating rate.
  • the composition applied easily, and did not appear to dewet.
  • the applied composition was allowed to stand for a 10 or 20 minute contact time, then scrubbed by hand or scrubbed using a rotary floor machine operated at 180 RPM and equipped with a green, brown or blue SCOTCH-BRITETM abrasive pad (from 3M Co.), then rinsed twice with water. All coats of the finish were completely removed after either a 10 or 20 minute contact time. No oily residue remained after rinsing the tile.
  • a ready to use stripper formulation was made using the ingredients and amounts shown below in Table 3.
  • the mixture formed a clear, single-phase solution.
  • Table 3 Ingredient Amount, % Deionized water 48.2 C 12 -C 18 fatty acid 1 5.0 Sodium hydroxide, 50 % 1.8 Ethanol 3.0 Benzyl alcohol 13.5 C 10 -C 14 EO(6) fatty alcohol 2 4.0 Methylglycinediacetic acid, trisodium salt, 40% 3 0.5 Propylene glycol phenyl ether 4 11.0 Colloidal silica 5 11.0 Polyacrylic acid copolymer thickener 6 2.0 1 EDENOR K 12-18 coconut fatty acid from Cognis.
  • the resulting stripper composition was evaluated using the method of Example 1 and evaluated for wetting behavior and removability using the following subjective scales: Wetting Behavior Numerical Rating Observed Behavior 2 Excellent wetting 1 Less than 1% nonwetted area 0 1% to less than 3% nonwetted area -1 3% to less than 10% nonwetted area -2 10% or more nonwetted area Removability Numerical Rating Observed Behavior 3 Complete removal after single application 2 Complete removal after second application 1 About 95% removal after second application 0 About 90% removal after second application -1 About 80% removal after second application -2 About 70% removal after second application -3 Less than 70% removal after second application
  • the stripper composition exhibited excellent wetting behavior (a 2 rating) and provided complete finish removal after a single application (a 3 rating). Only a slightly oily residue remained on the stripped tiles. Removal of the sodium hydroxide and fatty acid would provide a stripper composition which would leave an objectionably oily residue after stripping. Such a residue could cause slip and fall injuries to persons walking on the stripped surface.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Paints Or Removers (AREA)
EP07845133.3A 2007-11-21 2007-11-21 Floor stripper for chemically-resistant crosslinked floor finishes Active EP2215169B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/085437 WO2009067120A1 (en) 2007-11-21 2007-11-21 Floor stripper for chemically-resistant crosslinked floor finishes

Publications (2)

Publication Number Publication Date
EP2215169A1 EP2215169A1 (en) 2010-08-11
EP2215169B1 true EP2215169B1 (en) 2016-06-01

Family

ID=39327226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07845133.3A Active EP2215169B1 (en) 2007-11-21 2007-11-21 Floor stripper for chemically-resistant crosslinked floor finishes

Country Status (9)

Country Link
EP (1) EP2215169B1 (es)
JP (1) JP5379153B2 (es)
CN (1) CN101855306A (es)
AU (1) AU2007361442B2 (es)
BR (1) BRPI0722108B1 (es)
CA (1) CA2701299C (es)
ES (1) ES2586722T3 (es)
MX (1) MX2010003961A (es)
WO (1) WO2009067120A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE535484C2 (sv) * 2010-04-08 2012-08-21 Envirochem Iec Ab Medel för borttagning av t.ex. färg samt användning av medlet
JP2014177599A (ja) * 2013-03-15 2014-09-25 Sansai Kako Kk 塗膜剥離用組成物
CN103525172B (zh) * 2013-10-23 2016-03-30 合肥环照高分子材料厂 一种印刷油墨清洗剂及其制备方法
JP6310727B2 (ja) * 2013-11-29 2018-04-11 株式会社ニイタカ フロアーポリッシュ用剥離剤及びフロアーポリッシュの剥離方法
ES2775059T3 (es) * 2016-05-10 2020-07-23 Atotech Deutschland Gmbh Una composición decapante no acuosa y un método para decapar un revestimiento orgánico de un sustrato
JP6975969B2 (ja) * 2017-11-13 2021-12-01 シーバイエス株式会社 架橋された塗膜用の洗浄剤組成物および床面の管理方法
US11339302B2 (en) * 2019-09-03 2022-05-24 Nch Corporation Composition and method for removing a coating from a surface

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243475A1 (de) * 1992-12-22 1994-06-23 Henkel Ecolab Gmbh & Co Ohg Neutrales Wischpflegemittel (I)
JP4013998B2 (ja) * 1996-03-07 2007-11-28 ジョンソンディバーシー株式会社 水性ポリマータイプフロアーポリッシュ用の剥離剤
US5977042A (en) * 1998-10-01 1999-11-02 S. C. Johnson Commercial Markets, Inc. Concentrated stripper composition and method
JP2002309127A (ja) * 2001-04-11 2002-10-23 Sansai Kako Kk 光硬化型樹脂塗膜用剥離剤及び該光硬化型樹脂塗膜の剥離方法
JP4610920B2 (ja) * 2004-03-30 2011-01-12 スイショウ油化工業株式会社 剥離剤組成物およびその製造方法
US20070087952A1 (en) * 2005-10-18 2007-04-19 Ecolab Inc. Floor stripper/cleaner containing aliphatic acid-organic base pair
EP1937783B1 (en) * 2005-10-18 2016-11-23 Ecolab Inc. Floor stripper/cleaner containing organic acid-base pair
US7674760B2 (en) * 2005-10-18 2010-03-09 Ecolab Inc. Floor stripper/cleaner containing organic acid-base pair

Also Published As

Publication number Publication date
CA2701299A1 (en) 2009-05-28
WO2009067120A1 (en) 2009-05-28
BRPI0722108A2 (pt) 2014-04-08
AU2007361442A1 (en) 2009-05-28
JP2011504203A (ja) 2011-02-03
CN101855306A (zh) 2010-10-06
ES2586722T3 (es) 2016-10-18
MX2010003961A (es) 2010-04-27
AU2007361442B2 (en) 2013-01-31
BRPI0722108B1 (pt) 2018-03-20
CA2701299C (en) 2014-08-19
EP2215169A1 (en) 2010-08-11
JP5379153B2 (ja) 2013-12-25

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